Feed-regulator.



llnvrmqtlzn PEB. 11,1908.

M. P. WILLIAMS. FEED REGULATOR.

APPLIUATION FILED' JULY 15,1907.

UNITED STATES PATENT oEErcE.

MILTON F. WILLIAMS, OF ST. LOUIS, MISSOURI, ASSIGNOR TO WILLIAMS PATENT CRUSHER & PULVERIZER COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

FEED-REGULATOR.

Specification of Letters Patent.

Patented Feb. .11, 190s.

Application led July 15. 1907. A Serial No. 383.782.

T o all whom 'it may concern.' A

Be it known that I, MILTON F. WILLLAMS, a citizen of the United States, residing at St.

Louis, Missouri, have invented a certain newV of this specification, in whlch- Figure 1 is a side elevation of a feeding machine constructed in accordance with my invention; Fig. 2 is a vertical longitudinal sectional view of the machine shown in Fig. 1; and Fig. 3 isa vertical transverse sectional view of said machine.'

This invention relates to machines for feeding material to pulverizers or grinding mills .and has for its object to provide an automatic feeder of simple contraction that can be adjusted accurately to vary the quantity of material which is fed.

Referring to the drawings which represent the preferred form of my invention, 1 designates the hopper of the machine into which the material is dumped, and 2 designates a horizontally disposed reciprocating member that forms, the bottom of the hopper. The lower end of the hopper isconstructed, as shown in Fig. 2, and the lower portion of the rear wall of the hopper is formed by an inclined slide 3 which can be adjusted to vary the feed opening between the lower edge of .the slide and the reciprocating member 2.

The adjustment of this slide 3 is effected by a nut 4 mounted on a stationary screw 5 extending arallelto theslide,saidnutbeingprovided Wit a groove which receives an extension 6 on the slide. Movement is imparted to the reciprocating member 2 by toothed segments 7 which mesh with racks 8 on the underneath side ofthe reciprocating member 2. The

segments 7 are secured to a horizontally disposed shaft 9 that is ournaled in the side Walls of a rectangular-s aped casting y10 and at one end of said shaft is a rock arm 1 1 which is connected by a link 12 to a rock arm 13 on ya driven shaft 14, said driven shaft being proto a stud 18 which projects laterally from a block that is mounted in aideway in the rock arm 13 on the driven slzft, said block being adapted to be moved by an ad'usting screw 19 mounted in said arm 13 and aving its screw-threaded portion extending throu h a screw-threaded opening in the block. gy adjusting the 'screw 19 the .position of the stud 18-relatively to the axis of the shaft 14 will be varied and thus change the degree of movement imparted to the reciprocating member 2 and the degree of movement of said member can also be varied by changing the position of the stud 17 in the slot in arm j 11. By havin a double adjustment, as above describe I am able to-obtain avery fine and accurate adjustment of the reciprocating member and accordingly, can control absolutely .the quantity of material that is fed.

One end of the reciprocating member 2 is supported by the segments 7 and the (ipposite end of said member i's su porte by rollers 20 on a cross shaft 21 wliich is also mounted in the side Walls of the casting 10. These rollers 20 are provided4 with flan es 22 which engage guides or side pieces on t e I eciprocating member 2 so as to prevent sald member from moving laterall 4said guides or side pieces consisting of ang e irons 23, the horizontal legs of which extend underneath the reciprocating member 2 and form tracks or wearing surfaces for the rollers 20. The vertical legs of the angle irons 23 extend above the top surface of the reciprocating member and roject into guidewa s at the lower edges o the side walls of thev opper 1, as shown in Fig. 3, thereb prevent' the material from spilling or rolling latera y off the reciprocating member 2. These guideways for the vertical legs of the angle irons 23 are formed by Z-shaped portions 24 projecting laterally from the lower edge portions of the side Walls of the hopper and. the lower horizontal legs of these Z-shaped portions are secured to flanges 25 on the casting 10 by means 0f bolts26, thereby permitting the entire hopper to be removedv easily.

The operation of the feeder will be obvious from the foregoing, the reciprocating movement of the member 2in one direction carrying a certain quantity of the material out of the hopper and then discharging this material into the ho per of the crusher or mill when the Side moves in the op te d1- rection. The slide 3 and reciprocating member 2 can be accurately adjusted so that the quantity of material that is fed can be controlled positively. Moreover, the feeder is so constructed that the parts which receive the greatest .wear .can be removed and replaced by new ones and thus reduce the cost of maintenance.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A feeder comprising a. hopper, a reciprocating member forming the bottom of sald hopper, an inclined slide forming a portion of one wall of the hopper and having its lower edge separated from the reciprocating member to forma discharge opening, means for adjusting said slide, oscillating toothed segments that mesh with racks on the reciprocating member, a rock shaft to which said segments are secured, a driven shaft, arms on the rock shaft and on the driven shaft, and a link having its opposite ends adjustably connected to said arms; substantially as described. l

2. A feeder comprising a ho per, a reciprocating member forming the ottom of said hopper, angle irons secured to said member and having their vertical legs projecting upwardly outside of the side walls of the hopper, t

supporting rollers on which the horizontal legs of said angles bear, and flanges on the rollers for engaging the vertical legs of said angles to prevent lateral movement of the recl rocating member; substantially as descri ed.

3. A feeder comprising a hopper provided at the lower edge portions of its side walls with laterally extending Z-shaped members, a rectan ular-shaped casting to which said Z-shape members are secured, a reciprocating member forming the bottom of the hopper and )rovided at its side edges with flanges whic project u wardly into guideways formed by the Z-s aped members and the side walls of the ho per, an adjustable inclined slide forming tie lower portion of the rear wall of the hopper, a rock shaft mounted in the walls of the casting and provided with toothed segments that mesh with racks on the underneath side of the'reciprocating member, means for actuating said rock shaft, and means for varying the degree of movement imparted to said shaft; substantially as described.

'In testimony whereof I hereunto-aiix my signature in the presence of two witnesses, this eleventh day of July 1907.

MILTON; F'. WILLIAMS.

Witnesses:

F. R. CoRNwALL, LENoRE WrL'soN. 

